641
FOCA52 TJSJ 090631
AFMSJU
AREA FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN JUAN PR
231 AM AST WED SEP 9 2026
PRZ001-092000-
SAN JUAN AND VICINITY-
INCLUDING THE CITIES OF BAYAMON, CAROLINA, CATANO, GUAYNABO,
SAN JUAN, TOA ALTA, TOA BAJA, AND TRUJILLO ALTO
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 84 91 92 73 78 82 82 87 91 74 78 82 82 88 91
TEMP 78 85 90 91 85 82 80 79 78 83 86 87 83 81 80 79 78 84 87 88 84 81
DEWPT 75 77 78 77 77 77 77 76 76 78 78 78 78 77 77 76 76 77 77 77 76 76
RH 91 77 68 64 77 85 91 91 94 85 77 75 85 88 91 91 94 80 72 70 77 85
WIND DIR E E E E E E E E SE E E SE E E E E E E E E E E
WIND SPD 8 11 16 16 13 10 9 9 10 12 16 17 13 9 10 9 8 10 16 14 13 9
WIND GUST 26 24 20 19 19
CLOUDS B2 B2 B1 B1 B1 SC B1 B1 B2 B2 B2 B1 B2 SC SC SC SC SC SC SC SC FW
POP 12HR 50 60 60 30 30
QPF 12HR 0.35-0.51 0.20-0.42 0.17-0.44 0.05-0.15 0.06
SNOW 12HR MM MM MM
RAIN SHWRS NM SC SC SC SC SC SC SC NM SC SC SC NM IS IS IS IS SC SC IS IS IS
TSTMS IS IS IS IS IS IS IS IS IS
OBVIS H H H H H H H H
HEAT INDEX 80 96103104 96 89 85 81 80 93100101 94 88 84 82 81 94100100 93 88
MAX HEAT 102 109 108 95 99 109 105 94 101 109 108
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 78 88 78 88 77 89 77 89
TEMP 79 84 88 81 79 84 88 80 78 84 89 80 78 84 89 81
DEWPT 75 76 76 76 75 76 76 76 75 76 76 75 75 76 75 75
PWIND DIR E E E E E E E E
WIND CHAR GN GN GN GN LT GN LT GN
AVG CLOUDS FW FW FW SC SC SC SC SC SC SC B1 B1 SC SC FW SC
POP 12HR 0 30 30 30 30 40 30 30
RAIN SHWRS IS IS SC IS IS IS IS IS SC SC IS IS IS IS
PRZ002-092000-
NORTHEAST-
INCLUDING THE CITIES OF CEIBA, CANOVANAS, FAJARDO, HUMACAO,
LOIZA, LUQUILLO, NAGUABO, AND RIO GRANDE
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 75 88 92 67 78 82 76 86 90 68 78 82 74 87 92
TEMP 78 84 87 88 84 81 79 78 78 83 86 86 83 81 79 78 78 83 86 87 83 81
DEWPT 75 76 76 76 76 75 76 75 75 76 76 77 76 76 76 75 75 75 75 75 75 74
RH 91 77 70 68 77 82 91 91 91 80 72 75 80 85 91 91 91 77 70 68 77 79
WIND DIR E E E E E E E E E E E E E E E E E E E E E E
WIND SPD 11 16 17 16 13 12 12 13 14 16 16 16 13 11 12 12 10 13 16 13 12 12
WIND GUST 24 27 24 25 25 26 27 26 21 25 24 21 25 23
CLOUDS OV B2 B2 B2 B2 B1 B2 B2 OV OV B2 B2 B2 B1 B1 SC SC SC SC SC SC SC
POP 12HR 60 70 70 40 30
QPF 12HR 0.51 0.43 0.45 0.16 0.08
SNOW 12HR MM MM MM
RAIN SHWRS NM NM NM SC SC SC NM NM NM NM NM NM NM SC SC SC SC SC SC IS IS IS
TSTMS IS IS IS IS IS IS IS IS IS IS IS
OBVIS H H H
HEAT INDEX 81 93 98 99 92 87 84 81 80 91 96 97 91 87 84 82 81 91 95 96 91 87
MAX HEAT 100 108 106 93 98 106 105 94 98 105 104
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 79 87 78 85 77 86 77 86
TEMP 79 84 87 81 79 82 85 80 78 82 86 80 78 82 86 80
DEWPT 74 74 74 74 74 75 74 74 74 74 74 74 73 74 74 73
PWIND DIR E E E E E E E E
WIND CHAR GN GN GN GN GN GN GN GN
AVG CLOUDS SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 SC SC B1
POP 12HR 10 30 30 40 50 50 40 40
RAIN SHWRS IS IS IS SC SC SC SC SC IS SC SC SC SC SC IS SC
TSTMS IS IS
PRZ003-092000-
SOUTHEAST-
INCLUDING THE CITIES OF ARROYO, GUAYAMA, MAUNABO, PATILLAS,
SALINAS, AND YABUCOA
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 78 88 92 69 77 82 78 86 91 69 77 82 75 86 92
TEMP 77 84 87 88 83 80 79 78 77 82 85 86 83 80 79 78 77 82 85 86 82 80
DEWPT 74 76 77 76 76 75 76 75 75 77 77 77 77 76 76 76 75 76 76 76 76 75
RH 90 77 72 68 80 85 91 91 94 85 77 75 82 88 91 94 94 82 75 72 82 85
WIND DIR E E E E E E NE E E E E E E E E E E E E E E E
WIND SPD 9 13 16 14 12 10 10 11 11 13 14 14 12 10 11 11 9 11 14 13 12 10
WIND GUST 19 25 28 27 25 20 21 23 24 26 28 29 26 20 23 21 19 21 28 28 26 21
CLOUDS B2 B2 B2 B1 B1 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 SC SC SC SC SC SC FW
POP 12HR 60 70 70 40 30
QPF 12HR 0.38-0.51 0.29-0.43 0.21-0.46 0.07-0.16 0.08
SNOW 12HR MM MM MM
RAIN SHWRS SC NM NM SC SC SC SC NM NM NM NM SC SC SC SC SC SC SC SC IS IS IS
TSTMS IS IS IS IS IS IS IS IS IS IS
OBVIS H H H H H H H
HEAT INDEX 93 99 99 92 86 83 91 97 98 92 86 83 80 80 90 95 95 90 85
MAX HEAT 102 109 108 92 99 108 104 93 101 106 105
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 78 86 77 86 76 86 76 86
TEMP 78 83 86 80 78 82 86 79 77 82 86 79 77 82 86 79
DEWPT 74 75 74 74 74 75 74 74 74 75 74 74 74 74 74 74
PWIND DIR E E NE E E E E E
WIND CHAR GN GN GN GN GN GN GN GN
AVG CLOUDS FW FW FW SC SC SC SC SC SC B1 B1 SC B1 SC SC B1
POP 12HR 10 20 20 30 50 50 30 50
RAIN SHWRS IS IS IS IS IS IS IS IS IS SC SC SC SC SC IS SC
PRZ004-092000-
EASTERN INTERIOR-
INCLUDING THE CITIES OF AGUAS BUENAS, CAGUAS, CAYEY, CIDRA,
COMERIO, GURABO, JUNCOS, LAS PIEDRAS, AND SAN LORENZO
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 77 87 92 69 74 78 77 85 90 69 75 78 75 85 91
TEMP 74 82 86 87 82 78 76 75 74 80 84 85 81 78 76 75 75 80 84 85 80 78
DEWPT 73 75 76 74 75 74 74 74 73 75 76 76 76 75 75 74 73 75 75 74 74 73
RH 97 79 72 65 79 88 94 97 97 85 77 75 85 91 97 97 94 85 74 70 82 85
WIND DIR E E E E E E E E E E E SE E E E E E E E E E E
WIND SPD 5 11 13 13 11 5 5 6 8 11 13 13 11 6 8 8 5 9 12 12 11 6
CLOUDS B1 B2 B2 B1 B1 B1 B1 B1 B2 B2 B2 B1 B1 SC SC SC SC SC SC SC SC FW
POP 12HR 60 60 60 30 30
QPF 12HR 0.37-0.52 0.22-0.43 0.18-0.45 0.06-0.16 0.09
SNOW 12HR MM MM MM
RAIN SHWRS SC NM SC SC SC SC SC SC SC NM NM SC SC SC SC IS IS SC SC IS IS IS
TSTMS IS IS IS IS IS IS IS IS IS IS IS
OBVIS H H H H H H H H
HEAT INDEX 88 96 96 88 81 86 93 94 86 86 91 92 85
MAX HEAT 99 108 106 88 96 105 103 88 98 105 103
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 75 85 74 85 74 85 73 85
TEMP 75 81 85 78 75 80 85 77 74 80 85 77 74 80 85 77
DEWPT 73 74 73 73 73 74 73 73 72 74 73 73 72 74 72 73
PWIND DIR E E NE E E E E E
WIND CHAR LT GN LT GN LT GN LT GN
AVG CLOUDS FW FW FW SC SC SC SC SC SC SC B1 B1 B1 SC FW SC
POP 12HR 5 30 30 30 40 40 30 40
RAIN SHWRS IS IS IS SC SC IS IS IS IS SC SC SC SC IS SC
PRZ005-092000-
NORTH CENTRAL-
INCLUDING THE CITIES OF ARECIBO, BARCELONETA, DORADO, FLORIDA,
MANATI, VEGA ALTA, AND VEGA BAJA
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 85 91 92 74 77 82 83 88 91 74 77 82 84 89 92
TEMP 77 85 90 91 85 81 79 78 77 83 87 88 83 80 79 78 77 84 88 89 84 81
DEWPT 74 77 78 77 77 77 76 76 75 77 78 78 78 77 77 76 75 77 78 77 76 76
RH 90 77 68 64 77 88 91 94 94 82 75 72 85 91 94 94 94 80 72 68 77 85
WIND DIR E E E E E E E SE E E E E E E E E E E E E E E
WIND SPD 9 10 13 17 17 13 11 10 9 10 14 17 14 10 8 6 5 8 14 16 13 10
WIND GUST 31 32 25 31 26 29 25 20
CLOUDS SC SC FW B1 B1 FW SC SC SC SC SC B1 B1 FW FW FW FW SC SC SC SC CL
POP 12HR 40 20 40 20 20
QPF 12HR 0.32-0.72 0.04-0.29 0.16-0.62 0.03 0.04-0.10
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS SC SC IS IS IS IS IS IS SC SC IS IS IS IS IS IS IS IS
TSTMS IS IS IS IS
OBVIS H H H H H H H H H H H H H H H H H
HEAT INDEX 95104104 96 88 83 93101101 93 86 80 94101101 93 86
MAX HEAT 102 109 108 94 99 111 106 94 100 111 109
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 77 89 77 88 76 89 75 89
TEMP 78 84 89 81 78 83 88 79 77 83 89 79 76 83 89 79
DEWPT 75 76 76 76 75 76 77 76 74 76 77 76 74 76 76 75
PWIND DIR E E E E E E E E
WIND CHAR LT GN GN BZ GN GN GN GN
AVG CLOUDS CL CL FW FW FW FW FW SC FW FW SC SC SC FW FW SC
POP 12HR 0 5 0 20 5 20 10 20
RAIN SHWRS IS IS IS IS IS IS IS IS IS IS IS IS
PRZ006-092000-
CENTRAL INTERIOR-
INCLUDING THE CITIES OF AIBONITO, BARRANQUITAS, CIALES, COAMO,
COROZAL, JAYUYA, MOROVIS, NARANJITO, OROCOVIS, AND VILLALBA
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 75 85 92 65 73 77 75 84 91 64 73 77 74 83 91
TEMP 73 80 84 85 80 77 75 74 73 79 83 84 79 76 75 74 73 79 82 83 79 76
DEWPT 72 73 74 73 73 72 73 73 72 74 75 74 74 73 73 73 72 74 73 72 72 71
RH 97 79 72 67 79 85 94 97 97 85 77 72 85 90 94 97 97 85 74 70 79 85
WIND DIR E E E E E E E E E E E SE E E E E E E E E E E
WIND SPD 4 9 12 12 10 5 4 5 5 9 12 12 11 5 6 6 4 6 10 11 10 5
WIND GUST 19 27 25 21 21 27 27 24 26 27 24
CLOUDS SC B1 SC B1 B1 SC SC SC SC SC SC B1 B1 FW FW SC SC SC SC SC SC CL
POP 12HR 40 30 30 20 20
QPF 12HR 0.26-0.42 0.05-0.30 0.16-0.48 0.02-0.08 0.06
SNOW 12HR MM MM MM
RAIN SHWRS IS SC IS SC SC IS IS IS IS SC IS SC SC IS IS IS IS IS IS IS IS
TSTMS IS IS
OBVIS H H H H H H H H H H H H H H H H H
HEAT INDEX 84 92 92 84 83 90 90 83 82 88 88 81
MAX HEAT 98 109 108 89 96 106 103 86 97 105 103
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 73 84 73 83 72 83 71 83
TEMP 74 79 84 76 74 79 83 75 73 78 83 75 72 78 83 75
DEWPT 72 72 71 71 72 72 72 72 71 72 72 72 71 72 71 71
PWIND DIR E E NE E E E E E
WIND CHAR LT GN LT GN LT GN LT GN
AVG CLOUDS CL CL FW FW FW FW SC SC FW FW SC SC SC FW FW SC
POP 12HR 0 5 10 30 5 30 10 30
RAIN SHWRS IS IS IS IS IS IS IS IS IS IS IS IS IS
TSTMS IS
PRZ007-092000-
PONCE AND VICINITY-
INCLUDING THE CITIES OF GUAYANILLA, JUANA DIAZ, YAUCO, PENUELAS,
PONCE, AND SANTA ISABEL
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 75 89 92 64 76 82 76 87 93 64 76 82 74 87 93
TEMP 76 84 88 89 84 80 78 77 76 83 86 87 82 80 78 77 76 82 86 87 82 79
DEWPT 71 73 75 74 75 74 73 73 72 74 76 75 76 74 74 73 72 73 75 74 74 73
RH 85 70 66 61 74 82 85 87 87 74 72 68 82 82 88 87 87 74 70 65 77 82
WIND DIR E E E SE E NE E E E E E SE E E E E E E E SE E E
WIND SPD 5 10 14 13 12 8 5 6 6 11 14 14 13 9 8 8 6 8 13 13 12 9
WIND GUST 23 31 29 28 19 19 25 31 29 28 24 20 20 20 31 29 27 23
CLOUDS SC SC SC SC SC FW SC SC SC SC SC B1 B1 FW FW SC SC FW FW SC SC CL
POP 12HR 30 20 30 5 20
QPF 12HR 0.17-0.58 0.01-0.32 0.16-0.57 0.01-0.11 0.05-0.10
SNOW 12HR MM MM MM
RAIN SHWRS IS SC IS SC SC IS IS IS IS IS IS SC SC IS IS IS IS IS IS IS IS
TSTMS IS IS IS
OBVIS H H H H H H H H H H H H H H H H H H H
HEAT INDEX 90 98 98 91 85 81 89 96 96 90 84 81 88 94 94 88 83
MAX HEAT 97 108 106 92 96 107 106 95 96 106 105
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 76 88 76 86 75 87 75 87
TEMP 77 83 88 79 77 82 86 79 76 82 87 79 76 82 87 79
DEWPT 72 72 73 73 71 72 73 73 71 72 73 73 71 72 73 73
PWIND DIR E E NE E E E E E
WIND CHAR LT GN LT GN LT GN LT GN
AVG CLOUDS CL CL FW FW CL FW FW SC FW FW SC B1 SC FW FW SC
POP 12HR 0 10 0 30 5 40 10 40
RAIN SHWRS IS IS IS IS IS IS IS IS IS IS SC
TSTMS IS IS
PRZ008-092000-
NORTHWEST-
INCLUDING THE CITIES OF AGUADILLA, CAMUY, HATILLO, ISABELA,
AND QUEBRADILLAS
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 85 89 92 72 76 82 84 86 91 72 75 82 85 88 93
TEMP 75 83 88 89 84 80 78 77 76 82 85 86 82 79 77 76 75 83 87 88 82 79
DEWPT 73 75 77 77 77 76 75 75 74 75 77 78 77 76 75 75 74 75 77 77 76 75
RH 94 77 70 68 80 88 91 94 94 79 77 77 85 91 94 97 97 77 72 70 82 88
WIND DIR E E E NE E E E E E E E E E E E E E E E NE E E
WIND SPD 10 10 11 18 18 17 14 12 10 11 12 17 12 9 9 8 6 8 11 16 13 9
WIND GUST 31 32 33 27 25 21 23 29 25 20 21 29 25 20
CLOUDS FW FW CL B2 B2 FW FW FW FW FW FW B2 B2 FW FW CL CL SC SC SC SC CL
POP 12HR 70 5 60 20 30
QPF 12HR 0.54-0.86 0.04 0.41-0.68 0.02 0.10
SNOW 12HR MM MM MM
RAIN SHWRS IS NM NM IS IS IS IS IS NM NM IS IS IS IS SC SC
TSTMS IS IS IS IS IS IS
OBVIS H H H H H H H H H H H H H H H
HEAT INDEX 91101103 93 84 89 97 98 90 81 90 98 99 90 82
MAX HEAT 97 109 108 94 96 111 106 94 97 111 109
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 75 89 76 86 74 87 74 87
TEMP 76 83 89 80 76 81 86 78 75 82 87 78 75 81 87 78
DEWPT 73 74 76 75 74 74 76 75 73 74 76 75 73 74 76 75
PWIND DIR E E E E E E E E
WIND CHAR GN GN GN BZ GN GN GN GN
AVG CLOUDS CL CL FW SC CL CL FW SC FW FW SC B1 SC FW FW SC
POP 12HR 0 30 0 30 5 50 10 20
RAIN SHWRS IS IS SC SC SC SC IS IS IS IS
TSTMS IS IS
PRZ009-092000-
WESTERN INTERIOR-
INCLUDING THE CITIES OF ADJUNTAS, LARES, LAS MARIAS, MARICAO,
SABANA GRANDE, SAN SEBASTIAN, AND UTUADO
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 75 86 92 67 73 77 76 84 91 67 73 77 74 84 93
TEMP 73 81 85 86 81 77 75 74 73 80 83 84 79 76 75 74 73 80 83 84 79 76
DEWPT 70 73 75 74 74 73 73 73 72 73 75 75 74 73 73 72 71 73 74 73 73 72
RH 90 77 72 68 79 87 94 97 97 79 77 74 85 90 94 93 93 79 74 70 82 87
WIND DIR E E E E E E E E E E E SE SE E E E E E E E E E
WIND SPD 4 5 9 8 8 8 5 5 5 6 10 10 9 5 5 4 4 5 8 8 6 5
WIND GUST 31 28 27 19 17 20 29 29 28 21 28 28 26 23
CLOUDS FW FW FW B2 B2 FW FW FW FW FW FW B2 B2 FW FW FW FW SC SC B1 B1 CL
POP 12HR 70 5 60 20 40
QPF 12HR 0.22-0.86 0.01-0.06 0.26-0.68 0.02 0.06-0.12
SNOW 12HR MM MM MM
RAIN SHWRS IS IS NM NM IS IS IS IS NM NM IS IS SC SC
TSTMS IS IS IS IS IS IS
OBVIS H H H H H H H H H H H H H H H
HEAT INDEX 85 93 95 86 83 91 92 83 83 90 90 83
MAX HEAT 96 109 108 88 95 109 106 87 96 110 108
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 73 86 72 84 72 84 71 84
TEMP 73 80 86 76 73 79 84 75 72 79 84 75 72 79 84 75
DEWPT 71 71 72 72 71 71 73 72 71 72 73 72 70 72 73 72
PWIND DIR E E E E E E E E
WIND CHAR LT LT LT GN LT LT LT LT
AVG CLOUDS CL CL FW SC CL CL SC B1 FW FW SC B1 SC FW FW B1
POP 12HR 0 40 0 60 5 70 10 40
RAIN SHWRS SC SC NM NM NM NM IS IS SC SC
TSTMS IS IS IS IS IS IS
PRZ010-092000-
MAYAGUEZ AND VICINITY-
INCLUDING THE CITIES OF AGUADA, ANASCO, HORMIGUEROS, MAYAGUEZ,
MOCA, RINCON, AND SAN GERMAN
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 78 90 93 69 76 82 78 89 91 69 76 82 75 90 93
TEMP 76 84 89 90 84 80 79 77 76 83 88 89 83 80 78 77 76 84 89 90 84 80
DEWPT 72 75 78 77 78 77 76 75 74 76 78 78 78 77 76 75 73 76 77 77 77 76
RH 87 74 70 66 82 91 91 94 94 80 72 70 85 91 94 94 90 77 68 66 80 88
WIND DIR E E E E E E E E E E E SE E E E E E E E E E E
WIND SPD 8 8 8 9 8 12 11 9 8 9 9 10 10 10 10 8 6 8 6 8 8 9
WIND GUST 21 20 23 24 23 27 28 23 19 25 24 25 26 27 31 25 25 23 20 23 24 19
CLOUDS FW FW CL B2 B2 FW FW FW FW CL CL B2 B2 FW FW FW FW SC SC B1 B1 CL
POP 12HR 70 5 60 20 40
QPF 12HR 0.08-0.86 0.02 0.07-0.69 0.01-0.11 0.07-0.13
SNOW 12HR MM MM MM
RAIN SHWRS IS NM NM IS NM NM IS IS IS IS SC SC
TSTMS IS IS IS IS IS IS
OBVIS H H H H H H H H H H H H H H H
HEAT INDEX 93103104 96 87 80 92101103 94 85 93102103 94 84
MAX HEAT 101 109 108 92 99 111 106 93 101 112 111
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 75 91 76 89 75 89 74 89
TEMP 76 84 91 80 77 83 89 79 76 83 89 79 75 83 89 79
DEWPT 73 74 76 76 73 74 76 75 73 74 76 75 73 74 76 75
PWIND DIR E E NE E E E E E
WIND CHAR GN LT GN GN GN LT GN LT
AVG CLOUDS CL CL FW SC FW FW SC B1 FW FW SC B1 SC SC FW SC
POP 12HR 0 40 0 60 5 70 20 30
RAIN SHWRS SC SC NM NM NM NM IS IS SC SC
TSTMS IS IS IS IS IS IS
PRZ011-092000-
SOUTHWEST-
INCLUDING THE CITIES OF CABO ROJO, GUANICA, AND LAJAS
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 85 91 92 74 77 82 85 90 91 74 77 82 85 91 93
TEMP 77 85 90 91 85 81 79 78 77 84 89 90 84 81 79 78 77 85 90 91 85 81
DEWPT 72 75 78 77 78 77 76 74 74 76 78 78 78 77 76 75 74 75 78 77 77 76
RH 85 72 68 64 80 88 91 88 90 77 70 68 82 88 91 91 90 72 68 64 77 85
WIND DIR E E E SE E E E E E E SE SE E E E E E E E SE SE E
WIND SPD 6 11 19 16 16 11 8 8 9 13 18 18 18 16 12 12 10 11 17 18 16 16
WIND GUST 26 36 33 33 24 19 21 28 36 36 36 32 28 27 23 24 33 36 31 34
CLOUDS SC FW FW SC SC CL FW FW FW FW FW B1 B1 FW FW SC SC FW FW B1 B1 CL
POP 12HR 20 5 30 5 30
QPF 12HR 0.12-0.60 0.01-0.06 0.13-0.55 0.02 0.05-0.10
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS IS IS IS SC SC IS IS SC SC
TSTMS IS IS IS IS
OBVIS H H H H H H H H H H H H H H H H H
HEAT INDEX 93105105 97 89 82 93104105 96 88 82 94104105 95 87
MAX HEAT 97 109 108 94 98 109 107 95 100 111 109
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 76 92 75 90 75 91 75 91
TEMP 77 85 92 80 76 84 90 80 76 84 91 80 76 84 91 80
DEWPT 73 73 77 77 73 73 77 76 73 74 77 76 73 73 76 76
PWIND DIR E E NE E E E E E
WIND CHAR GN GN LT GN LT GN GN GN
AVG CLOUDS CL CL FW FW CL CL FW SC FW FW SC B1 SC FW FW SC
POP 12HR 0 10 0 30 5 50 10 40
RAIN SHWRS IS IS SC SC IS IS IS IS IS IS SC
TSTMS IS IS
PRZ012-092000-
CULEBRA-
INCLUDING THE CITY OF CULEBRA
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 85 89 94 82 85 89 92 82 85 90 93
TEMP 82 86 88 89 86 84 83 82 82 86 88 89 86 84 83 82 82 86 89 90 87 84
DEWPT 77 78 78 77 78 78 78 78 78 78 78 78 79 78 78 77 77 77 77 77 77 77
RH 85 77 72 68 77 82 85 88 88 77 72 70 80 82 85 85 85 75 68 66 72 80
WIND DIR E E E E E E E E E E E E E E E E E E E E E E
WIND SPD 21 23 21 19 20 21 23 23 24 21 21 20 19 19 21 20 19 20 19 19 16 17
CLOUDS OV B2 B2 B1 B1 B1 B2 B2 B2 B2 B1 B1 B1 SC SC SC SC SC SC SC SC SC
POP 12HR 60 60 50 30 30
QPF 12HR 0.47 0.41 0.23-0.31 0.14 0.06
SNOW 12HR MM MM MM
RAIN SHWRS NM NM NM SC SC SC NM NM NM SC SC SC SC SC SC SC SC SC SC IS IS IS
TSTMS IS IS IS IS IS IS IS IS IS IS
OBVIS H H H
HEAT INDEX 90 98101102 98 94 93 91 90 99103104 99 95 93 91 91 98102103 98 94
MAX HEAT 104 109 109 98 104 109 107 101 103 108 107
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 82 90 82 90 81 90 81 90
TEMP 82 87 90 84 82 86 90 84 82 86 90 84 82 86 90 84
DEWPT 76 77 77 77 76 77 77 76 76 76 76 76 76 76 76 76
PWIND DIR E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS SC SC SC SC SC SC B1 B1 B1 B1 B2 B1 B1 SC SC SC
POP 12HR 10 30 30 40 50 50 40 40
RAIN SHWRS IS IS IS SC SC SC SC SC IS SC SC SC SC SC IS SC
TSTMS IS IS
PRZ013-092000-
VIEQUES-
INCLUDING THE CITY OF VIEQUES
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 85 89 92 81 85 90 91 81 85 90 92
TEMP 81 86 88 89 86 83 82 81 81 86 89 90 86 84 82 81 81 86 89 90 86 84
DEWPT 76 77 76 75 76 76 76 76 76 77 76 76 76 76 76 76 76 76 75 74 75 75
RH 85 75 68 64 72 80 82 85 85 75 66 64 72 77 82 85 85 72 64 60 70 74
WIND DIR E E E E E E E E E E E E E E E E E E E E E E
WIND SPD 21 23 20 19 20 21 23 23 23 21 20 19 19 19 21 19 18 21 19 17 16 18
CLOUDS OV B2 B2 B1 B2 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC SC SC SC
POP 12HR 60 60 60 30 30
QPF 12HR 0.48 0.43 0.24-0.46 0.15 0.08
SNOW 12HR MM MM MM
RAIN SHWRS NM NM SC SC SC SC NM NM NM NM NM NM SC SC SC SC SC SC SC IS IS IS
TSTMS IS IS IS IS IS IS IS IS IS IS
OBVIS H H H
HEAT INDEX 87 96100 99 95 91 90 88 87 97101101 96 92 90 88 88 97100100 96 92
MAX HEAT 100 105 104 94 100 105 104 94 99 104 103
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 81 91 81 90 81 90 81 90
TEMP 82 87 91 84 82 86 90 83 81 86 90 83 81 86 90 83
DEWPT 75 75 74 75 75 75 74 74 75 75 73 74 74 75 73 74
PWIND DIR E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS SC SC SC SC SC SC SC B1 B1 B1 B2 B1 B1 SC SC B1
POP 12HR 10 30 30 40 50 50 40 50
RAIN SHWRS IS IS IS SC SC SC SC SC IS SC SC SC SC SC SC SC
TSTMS IS IS
VIZ001-092000-
ST.THOMAS...ST. JOHN...AND ADJACENT ISLANDS-
INCLUDING THE CITIES OF ANNA'S RETREAT, CHARLOTTE AMALIE,
CHARLOTTE AMALIE EAST, CHARLOTTE AMALIE WEST, AND CRUZ BAY
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 85 88 94 75 81 82 85 88 91 76 81 83 85 89 93
TEMP 81 85 87 88 85 83 81 81 81 85 87 88 85 83 82 81 81 86 88 89 86 84
DEWPT 77 77 76 76 77 77 77 77 77 77 76 76 77 77 77 77 76 76 75 75 75 75
RH 88 77 70 68 77 82 88 88 88 77 70 68 77 82 85 88 85 72 66 64 70 74
WIND DIR E E E E E E E E E E E E E E E E E E E E E E
WIND SPD 24 24 21 20 21 21 24 24 24 23 23 20 19 20 21 21 20 19 20 17 18 19
WIND GUST 34
CLOUDS OV B2 B1 SC SC SC B2 B2 B2 B1 B1 SC SC CL CL SC SC SC SC FW FW FW
POP 12HR 60 60 40 20 20
QPF 12HR 0.26-0.38 0.32-0.40 0.12-0.17 0.03 0.02
SNOW 12HR MM MM MM
RAIN SHWRS NM NM SC IS IS IS NM NM NM SC SC IS IS IS IS IS IS
TSTMS IS IS IS IS IS
OBVIS H H H H H H H H H H H H H H
HEAT INDEX 88 95 97 98 94 91 89 88 88 96 99100 96 92 90 88 88 96 99 99 95 92
MAX HEAT 103 109 108 96 100 105 104 96 101 106 105
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 81 89 81 89 80 89 80 89
TEMP 81 86 89 83 81 86 89 83 81 85 89 83 81 85 89 83
DEWPT 76 76 74 75 76 75 74 75 75 75 74 74 75 75 74 75
PWIND DIR E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS FW FW SC SC SC SC SC SC SC B1 B1 SC SC SC FW SC
POP 12HR 10 20 20 20 50 50 30 40
RAIN SHWRS IS IS IS IS IS IS IS IS IS SC SC SC SC SC IS SC
VIZ002-092000-
ST CROIX-
INCLUDING THE CITIES OF CHRISTIANSTED, FREDERIKSTED,
FREDERIKSTED SOUTHEAST, AND GROVE PLACE
231 AM AST WED SEP 9 2026
DATE WED 09/09/26 THU 09/10/26 FRI 09/11/26
AST 3HRLY 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
MAX/MIN 85 89 94 80 85 90 92 81 85 90 93
TEMP 81 85 88 89 85 83 81 81 80 86 89 90 86 83 82 81 81 86 89 90 86 84
DEWPT 77 78 77 77 77 78 78 78 77 78 78 77 77 78 78 77 77 77 76 76 76 76
RH 88 80 70 68 77 85 91 91 91 77 70 66 75 85 88 88 88 75 66 64 72 77
WIND DIR E E E E E E E E E E E E E E E E E E E E E E
WIND SPD 20 23 21 20 19 20 21 21 20 21 21 19 17 18 19 18 17 19 19 17 16 17
WIND GUST 31 33 32 32 31 28 27
CLOUDS OV B2 B1 SC SC B1 B2 B1 B2 SC SC SC SC FW FW SC SC SC SC FW FW FW
POP 12HR 60 60 30 20 10
QPF 12HR 0.27-0.37 0.37 0.13-0.19 0.06 0.02
SNOW 12HR MM MM MM
RAIN SHWRS NM NM SC IS IS SC NM SC SC SC SC SC IS IS IS IS IS IS IS
TSTMS IS IS IS
OBVIS H H H H H H H H H H H H
HEAT INDEX 88 97100101 96 92 90 87 87 98103103 97 93 91 88 88 97101102 96 93
MAX HEAT 104 110 108 95 102 109 108 97 101 108 106
DATE SAT 09/12/26 SUN 09/13/26 MON 09/14/26 TUE 09/15/26
AST 6HRLY 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 81 91 81 90 80 90 80 90
TEMP 81 86 91 84 81 86 90 83 81 86 90 83 81 86 90 83
DEWPT 76 76 76 76 76 76 75 76 75 75 75 75 75 75 75 76
PWIND DIR E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC B1
POP 12HR 10 10 10 20 30 30 20 60
RAIN SHWRS IS IS IS IS IS IS IS IS SC SC IS IS IS IS NM
TSTMS IS
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